Three months ended

Six months ended

June 30,

2021

2022

2021

2022

(In thousands)

Accumulated other comprehensive loss, net of tax:

Currency translation:

Balance at beginning of period

$

(169,030)

$

(169,655)

$

(169,575)

$

(171,235)

Other comprehensive income (loss)

402

(8,741)

947

(7,161)

Balance at end of period

$

(168,628)

$

(178,396)

$

(168,628)

$

(178,396)

Defined benefit pension plans:

Balance at beginning of period

$

(79,553)

$

(67,595)

$

(80,704)

$

(68,468)

Other comprehensive income - amortization of net
losses included in net periodic pension cost

1,144

856

2,295

1,729

Balance at end of period

$

(78,409)

$

(66,739)

$

(78,409)

$

(66,739)

OPEB plans:

Balance at beginning of period

$

(981)

$

(1,121)

$

(910)

$

(1,053)

Other comprehensive loss - amortization of net
gains included in net periodic OPEB cost

(64)

(63)

(135)

(131)

Balance at end of period

$

(1,045)

$

(1,184)

$

(1,045)

$

(1,184)

Total accumulated other comprehensive loss:

Balance at beginning of period

$

(249,564)

$

(238,371)

$

(251,189)

$

(240,756)

Other comprehensive income (loss)

1,482

(7,948)

3,107

(5,563)

Balance at end of period

$

(248,082)

$

(246,319)

$

(248,082)

$

(246,319)